Crystal Structure of (K0.95 Na0.05) (Al0.76 Fe0.14 Mg0.10)2 (Si3.25 Al0.75) O10 ((O H)1.96 F0.04)


European Journal of Mineralogy (1,1989-) (2001) 13, 545-555


Chemical name(K0.95 Na0.05) (Al0.76 Fe0.14 Mg0.10)2 (Si3.25 Al0.75) O10 ((O H)1.96 F0.04)
FormulaAl2.27F0.04Fe0.28H1.96K0.95Mg0.2Na0.05O11.96Si3.25
a (Å)5.2328
b (Å)9.0948
c (Å)20.207
α (°)90
β (°)95.694
γ (°)90
V (Å3)956.932
Space groupC 1 2/c 1